Appendix D. A table showing the performance of each plant species in each of the species richness treatments.

TABLE D1. Values represent the percent difference in shoot biomass between a manipulated soil treatment (either “sterile soil” [+0] or “sterile soil + AMF” [+AMF] or “sterile soil + saprobes/pathogens” [+SP]) and the untreated field soil treatment. Note that the largest increases in biomass are in the lowest diversity treatment in sterile [+0] and sterile + AMF [+AMF] treatments, where biomass was one order of magnitude higher than the untreated field soil treatment.

Plant Species*

Soil Treatment

Plant Species Richness Treatment

1

5

10

15

Achillea millefolium

+0

-22

-11

+AMF

33

41

+SP

-20

12

Agrostis gigantea

+0

16

8

+AMF

49

2

+SP

-10

0

Asclepias syriaca

+0

52

-16

2

+AMF

62

39

18

+SP

13

-18

6

Aster cordifolius

+0

-3

+AMF

-7

+SP

-2

Aster lanceolatus

+0

39

21

14

+AMF

31

55

6

+SP

21

-12

-3

Aster macrophyllus

+0

8

+AMF

9

+SP

5

Aster novae-angliae

+0

414

90

22

-5

+AMF

283

64

15

14

+SP

16

10

7

-5

Bromus inermis

+0

35

-31

11

+AMF

10

38

13

+SP

-6

-5

2

Cerastium vulgatum

+0

-14

16

+AMF

44

10

+SP

-2

-3

Chrysanthemum leucanthemum

+0

-20

-5

+AMF

4

19

+SP

-16

-2

Cichorium intybus

+0

-2

-14

+AMF

51

15

+SP

6

-3

Cirsium arvense

+0

-9

-2

+AMF

37

4

+SP

-17

1

Dactylis glomerata

+0

16

28

26

+AMF

49

67

15

+SP

24

6

3

Daucus carota

+0

37

-17

22

+AMF

69

25

15

+SP

-15

-19

4

Echium vulgare

+0

16

10

15

+AMF

32

13

26

+SP

3

27

10

Erigeron annuus

+0

237

-6

+AMF

359

16

+SP

-29

-4

Euthamia graminifolia

+0

49

14

-17

+AMF

80

35

2

+SP

19

-6

-7

Festuca pratensis

+0

+AMF

10

10

+SP

-18

-5

Fragaria virginiana

+0

-3

+AMF

14

+SP

-6

Geum macrophyllum

+0

-3

-3

-14

+AMF

41

21

31

+SP

-29

-16

-8

Hypericum perforatum

+0

169

28

-20

+AMF

288

39

21

+SP

-26

-20

3

Linaria vulgaris

+0

539

-4

1

+AMF

405

17

7

+SP

21

-3

-6

Medicago lupulina

+0

-17

-7

+AMF

21

3

+SP

-6

4

Oenothera biennis

+0

2

-10

+AMF

26

15

+SP

13

-2

Phleum pratense

+0

304

41

21

+AMF

289

72

18

+SP

-37

-15

7

Plantago lanceolata

+0

18

12

+AMF

31

14

+SP

-41

-6

Plantago major

+0

-14

7

+AMF

22

7

+SP

-5

8

Poa compressa

+0

13

+AMF

-2

+SP

-13

Potentilla recta

+0

37

-5

-3

+AMF

-6

-1

18

+SP

31

-26

5

Prunella vulgaris

+0

-14

-24

-3

+AMF

29

10

0

+SP

-48

-3

-7

Ranunculus acris

+0

16

12

+AMF

31

15

+SP

-7

-1

Rudbeckia hirta

+0

-18

-3

-16

+AMF

44

14

9

+SP

-19

-18

-8

Solidago altissima

+0

-11

-2

+AMF

21

-8

+SP

-2

-12

Solidago canadensis

+0

-11

11

+AMF

10

8

+SP

9

2

Trifolium pratense

+0

24

-4

-6

+AMF

60

13

14

+SP

8

-6

3

* All species are herbaceous biennials or perennials, except Erigeron annus, which is an annual.